000
AXPZ20 KNHC 140336
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI JAN 14 2011

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W.

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...ITCZ...

THE INTERTROPICAL CONVERGENCE ZONE AXIS IS CENTERED ALONG 05N86W 
TO 04N93W TO 07N118W TO 07N140W. SCATTERED MODERATE CONVECTION 
IS FROM 06N TO 10N BETWEEN 111W AND 117W.

...DISCUSSION...

AN UPPER LEVEL RIDGE AXIS IS ALONG 134W AND SUPPORTS A 1028 MB 
HIGH CENTERED ALONG THE NORTH-CENTRAL DISCUSSION BORDER NEAR 
33N128W. ANTICYCLONIC SURFACE FLOW CONTINUES TO DOMINATES THE 
REGION N OF 12N WITH AN AREA OF FRESH TRADES LOCATED OVER THE 
SOUTHERN PERIPHERY OF THE RIDGE FROM GENERALLY 08N TO 24N W OF 
118W. EARLIER DAYTIME ASCAT PASSES CAPTURED THIS RATHER LARGE 
AREA OF TRADES WHICH IS EXPECTED TO PERSIST THROUGH THE PERIOD 
AND INTO THE WEEKEND AS THE HIGH PRESSURE CENTER REMAINS NEARLY 
STATIONARY. NW WINDS OF 20 KT ARE ALSO OCCURRING OVER THE GULF 
OF CALIFORNIA N OF 23N WITH LITTLE CHANGE EXPECTED OVER THE NEXT 
FEW DAYS AS STRONG HIGH PRESSURE SETTLES OVER THE GREAT BASIN. A 
COLD FRONT IS CURRENTLY SITUATED NW OF THE AREA IN THE VICINITY 
OF 148W AND REMAINS SLOW TO MAKE ANY SUBSTANTIAL EASTWARD 
PROGRESS. NW SWELL FROM THE ASSOCIATED LOW PRESSURE AREA 
CENTERED NEAR 43N154W WILL CONTINUE AFFECTING THE NW WATERS WITH 
SEAS TO 13 FT...WHICH ARE THEN EXPECTED TO CONTINUE SUBSIDING 
GENERALLY W OF 120W THROUGH THE REMAINDER OF THE FORECAST PERIOD.

GAP WINDS...
STRONG SURFACE RIDGING OVER EASTERN MEXICO AND STRONG N TO NE 
FLOW CONTINUES OVER THE SOUTHWESTERN GULF OF MEXICO AIDING IN 
STORM FORCE CONDITIONS THROUGH THE ISTHMUS AND INTO THE GULF OF 
TEHUANTEPEC. AN EARLIER MORNING WINDSAT PASS AROUND 13/1242 UTC 
SHOWED WIND RETRIEVALS TO 40 KT WITH IXTEPEC MEXICO ALSO 
REPORTING NORTH WINDS AT 38 KT GUSTING TO 48 KT PER THE LATEST 
OBSERVATION AT 14/0200 UTC. WINDS WILL DIMINISH BELOW GALE 
FORCE BY LATE SATURDAY AS WINDS TURN SOUTHERLY IN THE SW GULF OF 
MEXICO. 

STRONG NE WINDS OVER THE WESTERN CARIBBEAN SEA CONTINUE TO 
FILTER THROUGH THE SOUTHERN CENTRAL AMERICA PASSES WITH DRAINAGE 
FLOW OCCURRING WITHIN THE VICINITY OF THE GULF OF PAPAGAYO AND 
NEAR THE GULF OF FONSECA. AS THE WIND DIRECTION MODIFIES 
SLIGHTLY OVER THE WESTERN CARIBBEAN THROUGH THE PERIOD...WINDS 
WILL DIMINISH BELOW 20 KT WITHIN 24 HOURS IN THE GULF OF 
FONSECA...AND ARE FORECAST TO CONTINUE NEAR THE GULF OF PAPAGAYO 
THROUGH EARLY SATURDAY.

$$
HUFFMAN